日本科学技术厅金属材料研究所最近研制出一种重量轻、强度大的新型复合材料——铝硼复合材料。它的比重介于铝(2.7)和硼(2.3)之间,拉伸强度可达130公斤/厘米~2,而且前用于制造飞机的硬铝拉伸强度也只有40公斤/厘米~2,高强度钢也不过80公斤/厘米~2。铝硼复合材料是目前世界上比强度最大的复合材料。这种材料是把宽度约为1毫米的5根硼纤 Japan Institute of Science and Technology Institute of Metal Materials recently developed a lightweight, high strength new composite - aluminum-boron composite materials. Its specific gravity is between aluminum (2.7) and boron (2.3) and its tensile strength is up to 130 kg / cm ~ 2, and the tensile strength of hard aluminum used in the manufacture of aircraft is only 40 kg / cm ~ High-strength steel but also 80 kg / cm ~ 2. Aluminum boron composite material is the world’s largest strength than the composite material. This material is made of 5 boron fibers with a width of about 1 mm